So what do you need us to do for you?
All estimating problems make the assumption you are familar with your math facts, addition and multiplication. Since students normally memorize multiplication facts for single-digit numbers, any problem that can be simplified to single-digit numbers is easily worked.
2. You are asked to estimate 47.99 times 0.6. The problem statement suggests you do this by multiplying 50 times 0.6. That product is the same as 5 × 6, which is a math fact you have memorized. You know this because
.. 50 × 0.6 = (5 × 10) × (6 × 1/10)
.. = (5 × 6) × (10 ×1/10) . . . . . . . . . . . by the associative property of multiplication
.. = 30 × 1
.. = 30
3. You have not provided any clue as to the procedure reviewed in the lesson. Using a calculator,
.. 47.99 × 0.6 = 28.79 . . . . . . rounded to cents
4. You have to decide if knowing the price is near $30 is sufficient information, or whether you need to know it is precisely $28.79. In my opinion, knowing it is near $30 is good enough, unless I'm having to count pennies for any of several possible reasons.
The answer should be the 3rd one.
The hundredths place is where the 5 is.
Look to the right of the hundredths place and determine if the number is 5 or more or if the number is 4 or less.
In this problem, the number to the right of 5 is 1, and 1 is less than 4.
This means you can keep the 5 the same and every number after the 5 becomes imaginary zeroes.
3.95174 becomes 3.95 (rounded to nearest hundredth).
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Answer:</h2>
<h2>
Step-by-step explanation:</h2>
We have two forces as follows:
<u>First force:</u>
Magnitude: 150 pounds
Angle: 30°
<u>First force:</u>
Magnitude: 100 pounds
Angle: 120°
So the components can be found as follows:
So the components of the resultant force can be found by adding each component of the individual forces as follows:
Finally, the magnitude and direction of the resultant force is:
